package com.imooc.controller;

import com.imooc.dataobject.ProductCategory;
import com.imooc.exception.SellException;
import com.imooc.form.CategoryForm;
import com.imooc.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import javax.validation.Valid;
import java.util.List;
import java.util.Map;

/**
 * SellerCategoryController
 * 卖家类目
 *
 * @author leon.cheng
 * @date 2018/11/26 15:21
 **/
@Controller
@RequestMapping("/seller/category")
public class SellerCategoryController {
    @Autowired
    private CategoryService categoryService;

    @GetMapping("/list")
    public ModelAndView list(Map<String, Object> map) {
        List<ProductCategory> productCategoryList = categoryService.findAll();
        map.put("productCategoryList", productCategoryList);
        return new ModelAndView("category/list", map);
    }

    @GetMapping("/index")
    public ModelAndView index(@RequestParam(value = "categoryId", required = false) Integer categoryId,
                              Map<String, Object> map) {
        if (categoryId != null) {
            try {
                ProductCategory productCategory = categoryService.findOne(categoryId);
                map.put("category", productCategory);
            } catch (SellException e) {
                map.put("msg", e.getMessage());
                map.put("url", "/sell/seller/category/list");
                return new ModelAndView("common/error", map);
            }
        }
        return new ModelAndView("category/index", map);
    }

    /**
     * 保存/更新
     *
     * @param form
     * @param bindingResult
     * @param map
     * @return
     */
    @PostMapping("/save")
    public ModelAndView save(@Valid CategoryForm form, BindingResult bindingResult, Map<String, Object> map) {
        if (bindingResult.hasErrors()) {
            map.put("msg", bindingResult.getFieldError().getDefaultMessage());
            map.put("url", "/sell/seller/category/index");
            return new ModelAndView("common/error", map);
        }
        ProductCategory productCategory = new ProductCategory();
        try {
            if (!StringUtils.isEmpty(form.getCategoryId())) {
                productCategory = categoryService.findOne(form.getCategoryId());
            }
            BeanUtils.copyProperties(form, productCategory);
            categoryService.save(productCategory);
        } catch (SellException e) {
            map.put("msg", e.getMessage());
            map.put("url", "/sell/seller/category/index");
            return new ModelAndView("common/error", map);
        }
        map.put("url", "/sell/seller/category/list");
        return new ModelAndView("common/success", map);
    }
}
